<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>走一走</title>
</head>
<body>
    <script src="../vue.js"></script>
    <div id="app">
        <ul v-for="(item,index) in list" :key="item.id">
            <li>{{item.name}}</li>
        </ul>
        <button @click="change()">走一走</button>
    </div>
    <script>
        const app = new Vue({
            el: '#app',
            data: {
               list:[
                {id:1,name:'帅哥'},
                {id:2,name:'美女'},
                {id:3,name:'程序员'}
               ]
            },
            methods: {
                change() {
                    this.list.push(this.list[0])

                    this.list.splice(0,1)
                }
            }
        })
    </script>
</body>
</html>